How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251
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Amine gas treating

Chlorate Candle Technical Sheet:

Reverse Osmosis:

Lithium Hydroxide:
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  • SmarterEveryDay

    1. A special thank you to those who support on Patreon at 2. I've decided to start sending the videos out via an email list. If you'd like to be notified directly so there's no Algorithm between you and I, Feel free to sign up here: . Be sure to add the address to your contacts so the email doesn't go to spam. Thanks for considering it!

    • Matt Thomison
      Matt Thomison

      Awesome job

    • Shortcut to Spanish - CONVERSATION FRIEND
      Shortcut to Spanish - CONVERSATION FRIEND

      I'm not an expert but... shouldn't this be kept secret? xD :D

    • Mr. Bee
      Mr. Bee

      You may know physics but grammar isn’t you’re strong suit… between you and me* I is a subject, the noun that completes the action. Between two things must be between two indirect objects (me is the first person pronoun used to describe direct or indirect objects in a sentence).

    • jimmy dean
      jimmy dean

      Why not just use potted plants to keep the oxygen level right :D

    • J.C. West
      J.C. West

      Interesting tidbit about the lunar lander. The landing gear was built by Canadian company Heroux Aerospace which is is just outside of Montreal. Since the lander was supposed to be an American success story NASA could not have something made in Canada touch the surface of the moon first. So NASA in a high tech move took a series of American made antennas from the top of the lander and strapped them to the landing gear destroying them on surface contact, but it effectively having an American made product be the first thing to "touch" the moon.

  • Sergey

    5:25 windows 7

  • Crusader Life
    Crusader Life

    RESPECT! No way I would survive on a sub

  • Anton Kyrychenko
    Anton Kyrychenko

    Lets make giant MEA and suck all co2 from the atmosphere xD

  • Raits Hots
    Raits Hots

    👍 😎

  • James O
    James O

    @smartereveryday I'm not sure if that guy liked you comparing his important safety task as like colouring in with crayon at kindergarten haha

  • Uber Wulf
    Uber Wulf


  • Joe Blow
    Joe Blow

    Well thanks, now I know how to make chlorine gas.... Dear NSA, its a joke

  • Joss Tremblay
    Joss Tremblay

    Good explanation

  • Captain Sledge
    Captain Sledge

    The gasses after electrolysis, are chambered and monitored for chlorine before being circulated. Incase of a filter failure.

  • badreality2

    Me: Thinking that submarines still have to resurface every 3 days, WWII-style.

  • Alchemie

    Am i wrong or is the potassium hydroxide neutralizing the HCl?

  • Cruz Ortiz
    Cruz Ortiz

    Let’s make a submarine!

  • PuffMaster420

    I know know how to start my own biodome, just called Pauly shore he said he’s down

  • Akhil Sharma
    Akhil Sharma

    Shout out to a great band Nine Inch Nails

  • CozyJuffyWuff

    These submarine videos are incredible, impressive, and leaves me in awe of these fine navy men. God Bless them all.

  • Christoph Landgraf
    Christoph Landgraf

    Name 'Clinker': There is a stone used in construction which is made of clay, baked at high temperatures. It sounds exactly like the 'clinker' remainder from the candle (just a guess).

  • Trademark

    How does a youtuber get on a submarine?

  • Jayci Gebert
    Jayci Gebert

    Your videos always scratch an itch. I've always been curious about how things work so I love what you do. Have you ever covered wave pools? How those work is cool

  • Denis O'brien
    Denis O'brien

    FOUR CANDLES .. they should have used fork handles for a longer burn.

  • Emilio Mejia
    Emilio Mejia

    I love how people get taken aback when you get all excited for the details. They explain things thoroughly but you always want more info and to see the things they talk about in action. This is the perfect channel for those of us with endless curiosity. Thank you, and keep it up!

  • El Mo
    El Mo

    Great channel 👍

  • dmerritt4ever

    and what if your atmosphere sampler brakes or malfunctions?

  • jack monsour
    jack monsour

    Princess booper snoot

  • Alex Pendragon
    Alex Pendragon

    Any submariner will tell ya, we buy our oxygen from the mermen of the deep, they especially love our jumbo shrimp! We also buy our whisky and ciggarettes from Davey Jones Locker, your go-to store of the deep since 1868!

  • Hondo Hunter
    Hondo Hunter

    that black sailor is cool.

  • EP

    This one trick that Oxygen companies hate!

  • Matias Mufa
    Matias Mufa

    or they could just use plants.... duuh

  • MemphiSS RaineSS
    MemphiSS RaineSS

    Just some good ole Americans, in an American made machine teaching Americans about how our rights are protected. this is why we don't speak Russian now

  • Crabefeller

    Submarines are so scary , i would feel safer on space ship surrounded by vacuum then in sub surrounded by enourmous pressure

  • Sylvanos

    God this channel reminds me so much of Mythbusters. Such a nostalgia trip watching a channel I love

  • Lati

    The amount of absolute atrocities that have occurred in that very machinery room 😂

  • Mark R
    Mark R

    start at 8:15

  • Robert Nicu
    Robert Nicu

    Well let me explain! Why would they in first place !

  • Cerebral Liberty
    Cerebral Liberty

    So this is why we dont have free dental.

  • Ian L12
    Ian L12

    Lol nothing against this video really interesting and that was all great...but isn't raycom the company started by the guy who made Kim Kardashian's career? 😂

  • Ian L12
    Ian L12

    Submariners are a different breed

  • DjSmileyofLasVegas

    That was interesting..but imagine if subs battle each other and all the stuff they have to go thru just to keep alive.

  • Darksunbird

    so the term clinker actually come from smithing.. it refers to the metals found in the bottom of the forge after heating metal.. but it usually means you got the metal too hot. in short a clinker is waste metal.

  • Biblesupports Flatearth
    Biblesupports Flatearth

    Outer space , lmao, prove it! Why don't you do a video on how we have pressure without a container, bet this video will never get made!!

  • Biblesupports Flatearth
    Biblesupports Flatearth

    Outer space , lmao, prove it! Why don't you do a video on how we have pressure without a container, bet this video will never get made!!

  • J Q
    J Q

    Great video sir I thoroughly enjoyed it even though I'm a ground pounder it's still interested to see all this

  • m box
    m box

    Princess boopersnoop; take my money please

  • Fahim Al Mamun
    Fahim Al Mamun

    Hay. Watching from Bangladesh.

  • Chris

    My man some much of a nerd he annoyed the navy nerds with all he’s questions

  • Jandi Diaz
    Jandi Diaz

    The sailor in glasses is cute 😍

  • the wolf studio
    the wolf studio

    I love that intro cause it gave me some Mythbuster vibes.

  • michael white
    michael white

    Couldn't the hydrogen be fed into fuel cells to provide backup power?

  • Robert

    Does the MEA stay hot? Is recirc air warm? What do they do with spent candles?

  • Subhash

    24:34 I knew before it's coming 😅😂how intelligent I am.. should probably apply for a job for sub-crew.

  • Harpy

    could it be plausible to use plants like algae since they convert co2 into oxygen or would this take up to much space to be effective

  • Ricardo Yeheskiel Divani
    Ricardo Yeheskiel Divani

    Thanks sir

  • Sam’s Stuff
    Sam’s Stuff

    This video didn’t have to be this long

  • spahgetti OH N O
    spahgetti OH N O

    4:56 look at the guy behind destin make that face

  • Akmal Fikri Abdul Rahman
    Akmal Fikri Abdul Rahman

    Pinging @Veritasium because I heard "visual learner".

  • Unknownbounty2002

    They should grow food on the sub

  • Dom Gia
    Dom Gia

    Looks like '80s computer

  • Matt Thomison
    Matt Thomison

    There's no men in space. They're in a pool.

  • Matt Thomison
    Matt Thomison

    Its pronounced Amine. Am-eye-n

  • Enrico Ariansyah
    Enrico Ariansyah

    I thought there was like a garden Inside of a submarine 😂

  • Eric Schmidt
    Eric Schmidt

    I've been on submarines for 5 years and still watched this. It's quite interesting to see a civilian perspective describing it rather than the military description I learned. I already knew how the systems worked but still learned a few new facts I didn't know before. Great video.

  • Paul Watkins
    Paul Watkins

    Love your vids but please stop with the raycon ads I realise they are a sponsor but it depressing me because I am on a limited budget and can't afford such luxuries having said that it would be awesome if they wanted to hook me up i am 67 years old but still active and would love some of those earbuds

  • TODOR Brassmonger Wenkov
    TODOR Brassmonger Wenkov

    still no limitless oxigen if the submarine is damaged.

  • Daniel Larios
    Daniel Larios

    Great video

  • reacp911

    at least its not methyamine. Breaking bad on a sub

  • d3sign3r

    I vote these submarine videos some of your best stuff. Please invite yourself onto some aircraft carriers, oil rigs, or other stuff like this.

  • chitownsuperfan

    Can you visually detail how lithium hydroxide scrubs the co2?

  • T Ray
    T Ray

    I imagine there's a great deal of precision involved in off-boarding the CO2. Remaining silent, remaining undetected, are crucial to the mission so you wouldn't want escaping gas or bubbles to make a lot of noise. I'm curious if the off-boarded CO2 comes out as bubbles or if perhaps the pressure matching allows for near immediate absorption?

  • Jeff Jeff
    Jeff Jeff

    A-Ganger: “We own practically 90% of the boat” Electricians and Mechanics: “Are we a joke to you?”

  • Balls Dheep
    Balls Dheep

    yes, capitan

  • Just a Man
    Just a Man

    Raycons are absolutely terrible for sound, he might love them but only if he hasn’t tried any others cos they’re easily beaten for sound quality.

  • Just a Man
    Just a Man

    Destin - 'laminar flow is the best'....creates whole UZmilk video explaining why Derek- 'i disagree'.....creates whole rebuttal video Destin- ‘I’m a visual learner' Derek- 'I disagree'....creates whole UZmilk video debunking the idea

  • jared L
    jared L

    Hey Dustin, first well done again as you always supply great videos. You mentioned been a visual learner yourself, I would be interested in you take on if you believe their is such thing as the 4 learning styles and have you thought about doing a test to prove or disprove them.

  • Ramona Schmidt
    Ramona Schmidt

    The nutty table laparoscopically wish because stone biologically tug including a abundant vietnam. curvy, disillusioned person

  • Calvin Chatman
    Calvin Chatman

    At 2:37 that was my senior chief at one point in time


    I saw someone on you back at the wall

  • Ian V.
    Ian V.

    An built-in baseline reading.... that's genius!

  • Skwal

    I already know that but it talk about submarine so it's cool

  • Steve Meehan
    Steve Meehan

    Very accurate. Thank you

  • gman andersch
    gman andersch

    What about a plant did nobody think of that

  • IRySimp - CFAA Evangelist
    IRySimp - CFAA Evangelist

    This is the best kind of youtube video! It thoroughly answers an interesting question that I never even thought to ask lol

  • Jason Foote's How-to and Reviews
    Jason Foote's How-to and Reviews

    Why don't these guys have military haircuts? Isn't this the navy?

  • Medic 6934
    Medic 6934

    hmmm a 9 inch nail he says? My inner grunge child is singing some tunes right now

  • DrAnguished

    U also breath recycled farts as well

  • cultclassic999

    Me: Half an hour video? I'll just skip parts like I do on cooking videos. Me after 30 minutes: (wait, I didn't skip even once....) Fantastic video!

  • Evan The Camera Man
    Evan The Camera Man

    Why don’t they just put a fan infront of a bush? (I know that they can’t)

  • Ez

    This video brings back memories, I recognize that staircase, the middle level hallway, the path to the officers quarters and the fwd machinery room. I don't remember it being that small though. I was on board 688's for 4 years and the guys weren't that nice, mostly they would answer questions with go look it up yourself, might have stayed in till retirement if I had a similar experience to yours.

  • Spectemur Agendo
    Spectemur Agendo

    As a layman in science and engineering I could fully understand this and enjoyed it thoroughly. Great job to you and the crew of the sub. Super informative and educational

  • johno

    Ive heard "ash tray on a motorbike" and "chocolate teapot" but "Hat on a submarine" is next level

  • Dorothy Lisbon
    Dorothy Lisbon

    You should talk about no sulfates fast hair growth shampoo.

  • Boogie Nights Mark Wahlberg
    Boogie Nights Mark Wahlberg

    The plan: Fast Forward to the end to find the answer. What happened: Watched the whole dag gum vid, was too good :)

  • Nhat nam share
    Nhat nam share

    Learning about how something works is always interesting.

  • Kringhetto

    I thought you were holding a white kit kat bar in the thumbnail.

  • James Davis
    James Davis

    I think I am a fairly smart guy - but then I watch this stuff and realize I am not nearly as smart as I think I am. The intelligence to come up with these systems just blows my mind.

  • John C
    John C

    Very interesting!

  • FlyUK

    Did not know about sea water and electrolysis creating chlorine gas! Great video - learnt something new! 😊

  • xExekut3x

    pretty crazy they let you on a sub with a camera...

  • Michael Aldrich
    Michael Aldrich

    I thought they just kept a couple of houseplants.

  • kiran muralee krishnan
    kiran muralee krishnan

    06:26 his face when that noise started..

  • Grocery Grip
    Grocery Grip

    i didn't realize how life on a sub is that much on a fine line. There's sooo much science going on that folks on a sub have to be on point. They're mostly lab techs and scientists on board....AWESOME job guys!

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